can't rollback to 1.00 radio to do OTA or manual FroYo

[jm_gagnon]

Okay, so I followed the OTA that upgraded the radio from 1.x to 2.05. (without root). I wait and wait, and no OTA. So today, I finally go to follow the procedures posted on other forums and when I try to roll back, the phone starts to install the update. Then the following error message appears:

"assert failed: file_getprop("/system/build.prop", "ro.build.fingerprint") == "verizon/inc/inc/inc:2.1-1update1/ (sic) (Status 7) Installation Aborted."

I'm certain someone has seen this. Any good links, tips, etc? Thanks in Advance.